Threaded sleeve for quick connection of pipelines

Abstract

The invention belongs to the field of fluid conveying pipelines, and particularly relates to a pipeline quick connection thread bushing. The pipeline quick connection threaded sleeve comprises a grab handle, a spring, a guide sleeve and a plurality of elastic pieces. Wherein the spring, the guide sleeve and the elastic piece are assembled in the grab handle from bottom to top, the lower end of the spring abuts against the interior of a spring installation groove of the grab handle, the guide sleeve is located on the top of the grab handle and fixedly connected with the grab handle, an elastic piece installation groove is formed in the inner side of the guide sleeve, the elastic piece is arranged in the elastic piece installation groove and matched with the guide sleeve through a conical face, and the top end of the spring supports the bottom end of the elastic piece. The elastic sheet side is provided with threads. Compared with the prior art, the pipeline quick connection threaded sleeve is reasonable in structural design and unique in structure, and quick connection with a threaded pipe is achieved by arranging the elastic piece to be matched with the spring; during installation, the threaded pipe only needs to be inserted into the guide sleeve to abut against the elastic piece downwards, finally the grab handle is tightened, the grab handle and the threaded pipe can be rapidly connected, continuous upward screwing from the bottom of the threaded pipe is not needed, installation is convenient, and time and labor are saved.

Description

Technical Field

[0001] The invention belongs to the field of fluid conveying pipelines, and in particular relates to a pipeline quick-connect threaded sleeve. Background Art

[0002] Bathroom appliances, such as wash basins, faucets, drains, etc., need to be installed with threaded tubes at the bottom for water flow, and threaded joints need to be installed on the outside of the threaded tubes to connect to the drain pipes. For example, a Chinese patent document with publication number CN201170406Y and invention name Quick Disassembly Hose Connector discloses a quick disassembly hose connector, which includes two interconnectable connector units, each connector unit is provided with a connector body and a nut, and the connector body is provided with a connecting pipe and a locking tooth ring; wherein, the connecting pipe is located in the locking tooth ring and a space for inserting the hose is provided between the connecting pipe and the locking tooth ring to accommodate hoses with different wall thicknesses within a certain range. However, in actual application, the existing threaded tubes are relatively long, and when installing the threaded joint, the threaded joint needs to be continuously screwed upward from the bottom of the threaded tube, which takes a long time, is inconvenient to install, and is time-consuming and labor-intensive. Summary of the invention

[0003] In view of the problem that the existing hose connector needs to continuously screw the threaded connector upwards from the bottom of the tube when the length of the tube is long, which is inconvenient to install and time-consuming and labor-intensive, the present application provides a quick-connect threaded sleeve, which realizes the quick connection of the hose connector and the tube by setting a spring sheet and a spring, which is easy to install and saves time and effort.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0005] A pipe quick-connect threaded sleeve comprises: a handle, a spring, a guide sleeve and a plurality of spring pieces; wherein: the spring, the guide sleeve and the spring piece are assembled in the handle from bottom to top, the lower end of the spring abuts in the spring mounting groove of the handle, the guide sleeve is located at the top of the handle and fixedly connected to the handle, a spring piece mounting groove is arranged on the inner side of the guide sleeve, the spring piece is arranged in the spring piece mounting groove, the spring piece and the guide sleeve cooperate through a conical surface, the top end of the spring supports the bottom end of the spring piece, and a thread is arranged on the inner side of the spring piece.

[0006] Preferably, the handle is a cylindrical shell, and a spring mounting groove is arranged at the inner bottom of the cylindrical shell. The spring mounting groove adopts a hollow design, and handle inner wall reinforcement ribs are arranged on the outer side of the spring mounting groove. A raised stop block is arranged on the inner side of the spring mounting groove. The handle inner wall reinforcement ribs and the raised stop block structure are symmetrically distributed on the inner side of the handle to ensure that the spring position is fixed.

[0007] Preferably, the guide sleeve is a cylindrical shell, a guide sleeve baffle portion is arranged on the top of the guide sleeve, the outer diameter of the guide sleeve matches the inner diameter of the handle, the guide sleeve is inserted into the top of the handle and fixedly connected to the handle; and a tooth tube through hole is in the middle of the guide sleeve.

[0008] Preferably, the spring clip adopts a conical structure, the inner side of the spring clip is provided with a thread that cooperates with the tooth tube, the outer upper surface is designed with a taper, the taper of the outer side of the spring clip matches the taper of the spring clip mounting groove, and a clamping step is provided on the lower part of the outer side of the spring clip. The spring clip is adapted to the clamping inner recess inside the guide sleeve through the clamping step.

[0009] Preferably, the outer diameter of the guide sleeve baffle portion is larger than the outer diameter of the handle, the bottom of the baffle portion abuts against the top of the handle, and the baffle portion limits the installation position of the guide sleeve; the middle of the guide sleeve is a tooth tube through hole, and the cross-section of the tooth tube through hole is circular; the inner wall of the guide sleeve is symmetrically provided with spring clip installation grooves.

[0010] Preferably, the spring piece installation groove is conical, and the number of the spring piece installation grooves is not less than 2.

[0011] Preferably, an anti-slip structure is provided on the upper outer portion of the handle, and the lower portion of the handle is polygonal.

[0012] Preferably, the number of the spring installation slots is 2-6.

[0013] Preferably, the guide sleeve 3 is pressed into the handle 1 to be fixed by interference fit or fixed by snap fastening, threading or bonding.

[0014] Preferably, the spring is a stainless steel spring, the outer diameter of the guide sleeve baffle portion is larger than the outer diameter of the handle by not less than 6 mm, a pattern structure is arranged on the upper outer side of the handle, the handle and the water pipe are an integrally formed component or the handle and the water pipe are separate components, which are fixedly connected by snaps, threads, or bonding; a one-way check structure is arranged inside the water pipe.

[0015] Compared with the prior art, the pipe quick-connect threaded sleeve of the present invention has the following beneficial effects: the pipe quick-connect threaded sleeve has a reasonable structural design and a unique construction, and a quick connection with the tooth tube is achieved by arranging a spring sheet and a spring in cooperation; during installation, it is only necessary to insert the tooth tube into the guide sleeve and press the spring sheet downward, and the spring sheet compresses the spring downward and expands outward under the action of the tapered portion until the spring sheet expands outward to break away from the bottom of the tooth tube. At this time, the spring sheet moves upward under the elastic force of the spring and fits the outside of the tooth tube. Finally, tighten the handle to complete the quick connection between the handle and the tooth tube; even when facing a tooth tube with a long length, it can be easily installed without having to keep twisting it upward from the bottom of the tooth tube. The installation is convenient, saving time and effort. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A three-dimensional diagram of a pipe quick-connect threaded sleeve;

[0017] Figure 2 This is an exploded view of a pipe quick-connect threaded sleeve;

[0018] Figure 3 It is a cross-sectional view of a pipe quick-connect thread sleeve;

[0019] Figure 4 This is a schematic diagram of the installation status of the pipeline quick connection thread sleeve and the threaded pipe;

[0020] In the figure: 1-handle, 2-spring, 3-guide sleeve, 4-spring, 5-spring mounting groove, 6-connecting protrusion, 7-tapered portion, 8-thread tube through hole, 9-clamping inner recess, 10-spring mounting groove, 11-thread tube, 12-water pipe. DETAILED DESCRIPTION

[0021] like Figure 1-4 As shown, the pipe quick connection threaded sleeve includes: a handle 1, a spring 2, a guide sleeve 3 and a plurality of spring pieces 4; the spring 2, the guide sleeve 3 and the spring pieces 4 are assembled in the handle 1 from bottom to top, the lower end of the spring 2 abuts against the spring mounting groove 5 of the handle 1, the guide sleeve 3 is located at the top of the handle 1 and is fixedly connected to the handle 1, a spring piece mounting groove 10 is arranged on the inner side of the guide sleeve 3, the spring piece 4 is arranged in the spring piece mounting groove 10, the spring piece 4 and the guide sleeve 3 cooperate through a conical surface, the top end of the spring 2 supports the bottom end of the spring piece 4, and the inner side of the spring piece 4 is provided with a thread.

[0022] like Figure 2 As shown, the handle 1 is a cylindrical shell, and the upper outer part of the handle 1 is provided with a pattern or other structure to increase the surface friction for anti-slip, which is convenient for holding during installation; the lower outer part of the cylindrical shell is polygonal, which is convenient for twisting with a wrench; a spring mounting groove 5 is provided at the bottom inner side of the cylindrical shell, and the spring mounting groove 5 adopts a hollow design, and a handle inner wall reinforcement rib 51 is provided on the outer side of the spring mounting groove 5, and a raised stop block 52 is provided on the inner side of the spring mounting groove 5, wherein the handle inner wall reinforcement rib 51 and the raised stop block structure 52 are symmetrically distributed on the inner side of the handle 1 to ensure that the position of the spring 2 is fixed.

[0023] The spring 2 is made of a stainless steel spring, and the bottom of the spring 2 is placed in a spring installation groove 5.

[0024] The guide sleeve 3 is a cylindrical shell, and a guide sleeve baffle portion 31 is arranged on the top of the guide sleeve 3. The outer diameter of the guide sleeve 3 matches the inner diameter of the handle 1. The guide sleeve 3 is inserted into the top of the handle 1 and fixedly connected to the handle 1. The guide sleeve 3 can be pressed into the handle 1 to be fixed by interference fit, or it can be fixed by other means such as snaps, threads, bonding, etc. The outer diameter of the guide sleeve baffle portion 31 is larger than the outer diameter of the handle 1 (the outer diameter difference is usually not less than 6 mm), and the bottom of the baffle portion 31 is against the top of the handle 1, and the baffle portion 31 limits the installation position of the guide sleeve 3; the middle of the guide sleeve 3 is a tooth tube through hole 8, and the cross section of the tooth tube through hole is circular; the inner wall of the guide sleeve 3 is symmetrically provided with spring clip installation grooves 10, which are 10-conical, and the number of spring clip installation grooves 10 is determined according to needs, not less than 2, and generally 2-6.

[0025] The spring piece 4 adopts a conical structure, and a thread matching the tooth tube 11 is provided on the inner side of the spring piece 4, and the upper outer surface is designed with a taper. The taper of the outer side of the spring piece matches the taper of the spring piece mounting groove. A clamping step is provided on the lower outer side of the spring piece, and the spring piece 4 is adapted to the clamping inner recess 9 inside the guide sleeve 3 through the clamping step.

[0026] In addition, the handle 1 has various styles. Figure 4 The figure shows one of the styles: the handle 1 and the water pipe 12 are integrally formed components; or the handle and the water pipe can also be separate components, fixedly connected by various means such as snaps, threads, and bonding; a one-way check structure can be set inside the water pipe 12 to prevent water backflow, odor return, and insect prevention; the guide sleeve 3, the handle 1 and the spring 4 can all be made of hard plastic or other materials.

[0027] Assembly process: first install the spring 4 in the spring installation groove of the guide sleeve 3, install the spring 2 in the spring installation groove of the handle 1, and then press the guide sleeve 3 into the handle 1 to achieve interference fit and fixed connection, that is, assemble it into a pipeline quick connection threaded sleeve.

[0028] Specific working principle: the spring piece 4 is installed in the guide sleeve 3, and a spring piece installation groove 10 for installing the spring piece 4 is provided on the inner side of the guide sleeve 3, and a tapered portion 7 is provided on the outer side of the upper end of the spring piece 4, and the cross-sectional areas of the tapered portion 7 and the spring piece installation groove 10 are increased from top to bottom; a clamping protrusion 6 is provided on the lower part of the outer side of the spring piece 4, and a clamping inner recess 9 matched with the clamping protrusion 6 is provided on the inner side of the end of the spring piece installation groove 10 to ensure that the spring piece 4 moves in the spring piece clamping groove 10; the number of the spring pieces 4 is two, or more, and the inner side of the spring piece 4 is provided with an internal thread; a spring installation groove 5 for installing the spring 2 is provided on the inner side of the handle 1 (the outer side of the spring installation groove 5 is a baffle 51 for fixing the spring, and the inner side has a baffle 52 for fixing the spring); a tooth tube through hole 8 is provided on the guide sleeve 3, and the cross-section of the tooth tube through hole 8 is circular, and the outer side of the guide sleeve 3 is clamped with the inner side of the handle 1. It can be understood that the cross-sectional area of ​​the upper end of the spring sheet is larger than the cross-sectional area of ​​the upper end of the spring sheet installation groove 10, so that the inner side of the spring sheet 4 protrudes from the spring sheet installation groove 10; during installation, the tooth tube 11 is inserted into the guide sleeve 3 to press the spring sheet 4 downward, and the spring sheet 4 compresses the spring 2 downward and expands outward under the action of the tapered portion 7 until the spring sheet 4 expands outward to the bottom of the tooth tube 11. At this time, the spring sheet 4 moves upward under the elastic force of the spring 2 and fits the outer side of the tooth tube 11. Finally, tighten the handle 1 to complete the quick connection between the handle 1 and the tooth tube 11. That is, the tooth tube 11 can be directly pressed into the guide sleeve 3, and the spring 2 and the threaded spring sheet 4 can be used to achieve quick thread matching installation. During installation, even if the tooth tube is long, it can be easily installed. The installation is convenient, time-saving and labor-saving. When disassembling, you only need to rotate the handle to unscrew the pipe quick connection thread sleeve.

Claims

1. A pipe quick-connect threaded sleeve, comprising: A handle, a spring, a guide sleeve and a plurality of spring sheets; the characteristics are as follows: the spring, the guide sleeve and the spring sheets are assembled in the handle from bottom to top, the lower end of the spring abuts in the spring mounting groove of the handle, the guide sleeve is located at the top of the handle and is fixedly connected to the handle, a spring sheet mounting groove is arranged on the inner side of the guide sleeve, the spring sheet is arranged in the spring sheet mounting groove, the spring sheet and the guide sleeve cooperate through a conical surface, the top end of the spring supports the bottom end of the spring sheet, and a thread is arranged on the inner side of the spring sheet.

2. The pipe quick connection threaded sleeve according to claim 1, characterized in that: The handle is a cylindrical shell, and a spring mounting groove is arranged at the inner bottom of the cylindrical shell. The spring mounting groove adopts a hollow design, and a handle inner wall reinforcement rib is arranged on the outer side of the spring mounting groove. A raised stopper is arranged on the inner side of the spring mounting groove. The handle inner wall reinforcement rib and the raised stopper structure are symmetrically distributed on the inner side of the handle to ensure that the spring position is fixed.

3. The pipe quick connection threaded sleeve according to claim 1 or 2, characterized in that: The guide sleeve is a cylindrical shell, a guide sleeve baffle is arranged on the top of the guide sleeve, the outer diameter of the guide sleeve matches the inner diameter of the handle, the guide sleeve is inserted into the top of the handle and fixedly connected with the handle; the middle of the guide sleeve is a tooth tube through hole.

4. The pipe quick-connect threaded sleeve according to claim 3, characterized in that: The spring clip adopts a conical structure, with a thread matching the tooth tube on the inner side of the spring clip, a tapered design on the outer upper surface, the taper of the outer side of the spring clip matches the taper of the spring clip mounting groove, and a snap-in step is provided on the lower part of the outer side of the spring clip, through which the spring clip is adapted to the snap-in recess inside the guide sleeve.

5. The pipe quick-connect threaded sleeve according to claim 4, characterized in that: The outer diameter of the guide sleeve baffle is larger than the outer diameter of the handle, the bottom of the baffle is against the top of the handle, and the baffle limits the installation position of the guide sleeve; the middle of the guide sleeve is a tooth tube through hole, and the cross-section of the tooth tube through hole is circular; the inner wall of the guide sleeve is symmetrically provided with spring installation grooves.

6. The pipe quick connection threaded sleeve according to claim 4 or 5, characterized in that: The shrapnel installation groove is conical, and the number of the shrapnel installation grooves is not less than 2.

7. The pipe quick-connect threaded sleeve according to claim 4 or 5, characterized in that: An anti-slip structure is arranged on the upper outer side of the handle, and the lower part of the handle is a polygon.

8. The pipe quick-connect threaded sleeve according to claim 4 or 5, characterized in that: The number of the spring clip installation slots is 2-6.

9. The pipe quick connection threaded sleeve according to claim 4 or 5, characterized in that: The guide sleeve 3 is pressed into the handle 1 and fixed by interference fit or by snap fastening, threading or bonding.

10. The pipe quick connection threaded sleeve according to claim 4 or 5, characterized in that: The spring is made of stainless steel, the outer diameter of the guide sleeve baffle is larger than the outer diameter of the handle by not less than 6 mm, a pattern structure is arranged on the upper outer side of the handle, the handle and the water pipe are one-piece molded components or the handle and the water pipe are separate components, which are fixedly connected by snaps, threads, or bonding; a one-way check structure is arranged inside the water pipe.

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